From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751696AbaETUJ7 (ORCPT ); Tue, 20 May 2014 16:09:59 -0400 Received: from mout.kundenserver.de ([212.227.17.24]:62238 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751616AbaETUJ5 (ORCPT ); Tue, 20 May 2014 16:09:57 -0400 From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: Tony Lindgren , Catalin Marinas , Paul Bolle , Russell King - ARM Linux , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] ARM: remove ARM710 specific assembler code Date: Tue, 20 May 2014 22:09:48 +0200 Message-ID: <4437236.32BrGIk46D@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.11.0-18-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <20140520160512.GE27830@atomide.com> References: <1364507176.1345.45.camel@x61.thuisdomein> <5053472.zFAHKQVpbv@wuerfel> <20140520160512.GE27830@atomide.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V02:K0:wAdaEGixmIOjwnMh8IAh9ZSQvqhHCErhDh5xrKdymIS KjoCXW7jGbziHaGHxI2Glsn7+sA9twoeIc/S/ol0AE2/dsdgUl Q1Bx2x2V3rx8Cg2DXg2P4PvVDeHd0EbW2lUAhoPOPWUoz4c2pS 3fzveZn4euoyz+AQRMflnJANeZKLBXaWEETRG10BVSlMHDMQfl h0AF1gCZ4UBhzNuWCcu9p0EdxxYu8TBH+d+nUcbJCTZQBs+OPi H7PMnptEBdFusYGZprWB+5RtC4L0MQ2IrUJeySN1l0f0QoxyoH iooqLzl9KSFCCUyNW5NpfNJG8yFWZtj5CmA7P5CIbLzA5qugks L7ebJtl/94RvCUWWhSYM= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 20 May 2014 09:05:13 Tony Lindgren wrote: > * Arnd Bergmann [140519 04:27]: > > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote: > > > > For the case of ARM710T, I think the last remaining user that can be > > configured is mach-integrator, but I don't know if anybody even has that > > CPU tile, or wants to keep using it. If Russell and Linus as the only > > people that have cared about Integrator in the past years want to > > cut down the number of supported CPUs, that would be a different matter: > > quite a number of CPUs are not supported in any other platform. > > Note that the integrator target in qemu does not support any ARM7, only > > StrongARM, ARM9 or later. I also double-checked about mach-clps711x, > > but I'm pretty sure those SoCs are all either ARM710a (no longer supported) > > or ARM720T (quite active). > > Hmm I don't think mach-integrator is using ARM710T? I don't know, we don't have a separate Kconfig option, so ARM710T and ARM720T use the same CONFIG_CPU_ARM720T symbol that can be enabled for integrator. Without any further information, I assumed that both might potentially be used. > The ARM710T was done by NEC and was used by the Psion MX hardware. > It's very close to ARM720T as far as I remember so might as well keep > the CPU support for it as that's just a few lines of code in the > mainline kernel. > > I don't think we have any mach directories using ARM710T, but I > would not be surprised if somebody comes along with device tree > based booting patches for Psion MX at some point. Of course, if someone does this, the CPU support would be the least of their work ;-) Just out of curiosity: was that NEC 710T a SoC that replaced the CL/PS7110, or a standalone CPU that Psion combined with a custom ASIC? Arnd